煤矿余热利用

中国矿业大学 2016 届本科生毕业设计
ABSTRACT
The paper mainly introduce the design of heating supply in winter and cooling in summer of a coal mine in Yong Cheng, using the low temperature waste heat of mine inflow by the Water Source Heat Pump（WSHP）. In the winter, the waste heat of mine inflow, exhaust wind and living waste water can satisfy the heating demand of building heating supply, cloth drying and mining ventilation heating. In the summer, the system can utilize the waste water to meet the need of cooling of buildings.
The normal volume of mine inflow which own the temperature of 22℃ is about 420m³/h, after
water treatment, the temperature of 20℃ is very suitable for the water source heating pump system. The heating includes building heating supply, cloth drying, bathing and mining ventilation heating. Firstly, The bath divided into shower and plunge bath require about 1200m³everyday. Secondly, The total heating and cooling area of the mine is 25000m2Thirdly, There are a lot of enter-air and returnair wells set up in the mine. The ventilation heating of main and vicewellheadrequire1100m³/min(18.3m³/s )and 9586m³/min(159.8m³/s) air which own the temperature above 8℃respectively. At the same times, 3300 workers should be dry.
热泵机组机组基本可以满足供热和制冷的需求，通过热泵机组的涌水被利用 后排入地表。
面对日益严峻的环境问题以及国家节能减排的要求，永城煤矿采用水源热泵 技术代替原仅使用锅炉和空调联合运行的方式，可以带来经济、环境两方面的共 同收益。本工程一共投资 1005.4 万元，投资全部收回周期为 6.40 年。每年可分 别减少二氧化碳，二氧化硫及氮氧化合物排放 8660.12t，107.07t，24.60t。节能环 保、效益十分显著。
矿井的的正常涌水量为 420m³/h，排水温度为 22℃，经过水处理后温度为 18℃，十分适合水源热泵机组。矿区目前冬季供暖负荷主要包括洗浴、建筑采暖、 工服烘干及井口防冻。矿区洗浴包括分淋浴和池浴，每天用水量合计 1200m³左 右。建筑采暖共计 2.5 万 m2，井口防冻主要包括主、副井口加热，现矿区设有多 个进风井和回风井，主矿区分 1 主 1 副两口进风井，主井进风量为 9586m³/min （159.8m³/s）；副井进风量 1100m³/min（18.3m³/s）。进风按照矿方要求加热至不 低于 8℃，同时，煤矿每天另有 3300 件工服需要烘干。
关键词：矿井涌水，水源热泵，供暖空调，节能环保
批注 [L1]: 利用煤矿矿井排水的低温余热资源, 使用水源 热泵技术， 批注 [L2]: 删了吧
批注 [L3]: 批注 [L4]: 删
批注 [L5]: 空气加热
批注 [L6]:
批注 [L7]: 删 批注 [L8]: 加分体 批注 [L9]: 投资共计 批注 [L10]: 经济 批注 [L11]: 显著
The system can meet the demand of heating in the winter and cooling in the summer. The used mine inflow will be let out to the earth’s surface.
In face of the increasingly severe environmental problem and the request for energy conservation and emissions reduction from government. Using WSHP to replace the old mode which utilize the boiler and air-conditioner can bring both environmental and economic benefits. The total investment of the project is 13.88 million Yuan. Of course, We can get back the input about 4 year totally. At the same times, the reduction of the emission of CO2, SO2 and NOx is about 8660.12t/y，107.07 t/y，24.60 t/y respectively. The benefit of energy conservation and environmental protection is enormous.
中国矿业大学 2016 届本科生毕业设计
编号：（ ）字 号
本科生毕业设计（论文）
Байду номын сангаас题目：
商丘某矿余热利用设计
姓名： 王龙跃
学号： 17125707
班级：
热能 12-02
二〇一六年六月
中国矿业大学 2016 届本科生毕业设计
摘要
本文主要对永城煤矿通过水源热泵技术，利用煤矿涌水的低温余热资源满足 冬季供暖和夏季供冷的需求进行了设计研究。冬季，通过利用矿井涌水，乏风余 热及生活废水的热量来满足建筑供暖，衣物烘干以及井口防冻的用热需求，夏季 则利用矿井涌水通过热泵机组提供建筑用冷。
Key Word: Mine inflow, Water source heat pump, Heating and Air-conditioning, Energy conservation and environment protection
批注 [L12]: 加 s
批注 [L13]: 批注 [L14]:
二、热泵系统设计方案 ........................................................................................................... 8 2.1 煤矿基本概况介绍 ......................................................................................................... 8 2.3 冷热负荷计算 ............................................................................................................... 10 2.3.1 矿井排水提供冷、热量计算 ................................................................................ 10 2.3.2 建筑冷、热负荷计算 ............................................................................................ 11 2.3.3 矿井防冻负荷计算 ................................................................................................ 13 2.3.4 衣物烘干负荷计算 ................................................................................................ 14 2.3.5 洗浴热水负荷计算 ................................................................................................ 15 2.4 管路设计及水泵选型 ................................................................................................... 16 2.4.1 各管路水力计算 .................................................................................................... 16 2.4.2 循环水泵选型 ........................................................................................................ 22 2.4.3 定压补水泵泵型选取 ............................................................................................ 22 2.5 设备选型 ....................................................................................................................... 22 2.6 本章小结 ....................................................................................................................... 25
中国矿业大学 2016 届本科生毕业设计
目录
一、绪论 ................................................................................................................................... 1 1.1 课题提出背景 ................................................................................................................. 1 1.2 热泵原理及其发展历程 ................................................................................................. 3 1.2.1 热泵技术原理 .......................................................................................................... 3 1.2.2 热泵技术发展历程与趋势 ...................................................................................... 4 1.3 国内热泵技术发展及利用现状 ..................................................................................... 6 1.4 主要研究内容 ................................................................................................................. 7 1.5 本章小结 ......................................................................................................................... 7